Q21 / 180 · KCET 2020 · Chemistry

Which of the following has the lowest boiling point?

  • A
    $\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{OH}$
  • B
    $\mathrm{CH}_{3}-\mathrm{CH}_{2}-\mathrm{NH}_{2}$
  • Correct answer
    C
    $\mathrm{CH}_{3}-\mathrm{O}-\mathrm{CH}_{3}$
  • D
    $\mathrm{HCOOH}$

Solution

We are given alcohol, carboxylic acid, amine and ether. So, the boiling point of ether $\left(\mathrm{CH}_{3}-\mathrm{O}-\mathrm{CH}_{3}\right)$ will be lowest in alcohol and carboxyl acid and amines, there is H-bonding responsible for higher boiling point as compared to ether.

Hence, the correct answer is option: 'C'.

More Chemical Bonding and Molecular Structure Questions